
Job Title: Java Developer
Experience: 4 –10 Years
Location: Mumbai / Bangalore
Employment Type: Full-time
We are looking for experienced and passionate Java Developers with strong expertise in Core Java, multithreading, and performance tuning. You will be responsible for designing and developing high-performance, scalable, and resilient backend systems. This is an exciting opportunity to work on complex, enterprise-level systems and modern architectures like microservices and event-driven frameworks.
• 3–10 years of hands-on experience in Java (8 or above) development.
• Strong foundation in OOPs, data structures, algorithms, and design patterns.
• Deep understanding of multithreading, concurrency, and synchronization techniques.
• Experience with Spring Boot, Spring MVC, JPA/Hibernate.
• Good working knowledge of RESTful API development.
• Proficient in SQL and experience with relational databases like MySQL, PostgreSQL, etc.
• Familiarity with Git, Maven/Gradle, and CI/CD pipelines.
• Exposure to Agile/Scrum methodology

About Wissen Technology
About
The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains.
With offices in US, India, UK, Australia, Mexico, and Canada, we offer an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
Connect with the team
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Job Overview: RevSure.AI is building a world-class team of Engineers with a mandate to architect, design, build, scale, and maintain our cutting-edge Revops platform and derive insights from the customer data. If you are a great JavaScript developer (or, for that matter, in any major programming language) with experience in building SaaS web applications and looking for an opportunity to build world-class products using cutting-edge technologies, please read on -
Responsibilities:
● Contribute to the growth and development of our product by writing and maintaining code, focusing on quality and maintainability. We believe that our teams own the code they build.
● Share your knowledge, both inside and outside your own team.
● Design, implement, test, and monitor valuable solutions that achieve the teamʼs goals while keeping a smooth delivery flow and balancing tradeoffs between scope, time, and effort.
● Continuously improve your and your teamʼs way of working, expanding the boundaries of your teamʼs autonomy and self-organisation.
Requirements:
Must-Have:
● Good interpersonal and communication skills. An analytical mind and an eye for detail
● Experience of 4-7 years in building large applications, preferably from the heavy data processing & analytics side
● Experience in architecting, designing, and building end-to-end System Design of multi tenant SAAS applications
● Experience architecting interactive configuration experiences around DAGs, configuration-heavy reporting feature, interactive data pipeline design interfaces, and charting.
● Experience in Java, Spring Boot, and GCP
● In-depth understanding of design patterns, OOPs, and Functional programming.
● Passionate programmer focused on Backend Programming.
Good to have:
● Working knowledge of GCP managed services like Kubernetes, PubSub
Please feel free to share your resume to chandana at revsure.ai
**Based on your experience, the title could vary. We care more about mindset , ownership, and craft than just titles.
Your Impact:
• Implements Digital Consumer experiences based on a foundation of SFCC (Salesforce commerce cloud) to meet expected quality standards
• Ensures functional requirements and high-level solution designs are understood and are translated into detailed technical design
• Implement proofs of concept to prove any new technologies, application flows or integration scenarios and identify customizations needed to SFCC platform for meeting client requirements
• Guides the performance tuning and scalability of the ecommerce solution
• Diagnose and solve technical problems during implementation and support phases
Your Skills & Experience:
• 4-8 Years with 2+ years of implementing commerce application on any eCommerce platform in last 3 years
• If you have not worked in eCommerce platform, we can still discuss with you if you are expert in Java/Net and understand REST/SOAP webservices.
• Demonstrate proficiency in build and release management using CI/CD strategies (leveraging tools like Jenkins and DevOps practices), implement Mocha/Chai unit and functional test cases in order to reduce costs while ensuring quality
. Contributes to designing, implementing and documenting the build release process as well as system configuration and deployment characteristics of the applications
• Participates in technical walkthroughs/ code reviews of other team members’ components, test plans and results and help them with gaps
• Collaborate with architect to define implementation processes and quality gates and standards
• Identifies risks and issues, and help monitor them
• Guides the development of reference and resource materials
• Mentors developers in improving their platform knowledge and development skills
• Communicate technical design to the developers and help/guide them in the implementation
• Participates in Agile sprints
Set Yourself Apart With:
• eCommerce platform certification
• Security considerations – OWASP, CSRF, reCAPTCHA etc. – Basic knowledge or experience
• Git Development workflow – Proficient
• Visual Studio Code IDE or Eclipse IDE - Proficient
• Knowledge on Agile methodology and desired tools like Jira, confluence etc.
• Scripting/development experience with Node.js, Mocha/Chai
• Experience working in any Salesforce cloud environment like SFMC, SFSC etc.
• Excellent written, verbal communication and articulation skills & Good team player
• Self-starter and self-learner with keen interest to grow
• Process orientation and the ability to define and setup processes
• Ability to provide necessary coaching to bring team members up to speed on the technology
• Ability to prioritize and manage multiple tasks
• Excellent and innovative approach to problem solving and finding solutions
• Flexible and proactive/self-motivated working style with excellent personal ownership of problem resolution
We’re looking for a Java Backend Developer with strong experience in Spring Boot, AWS, and Microservices to join our growing team. If you're passionate about scalable backend systems and love working in a fast-paced environment, we want to hear from you!
What You’ll Bring:
- 4+ years of backend development experience
- Strong hands-on expertise in Core Java and Spring Boot
- Experience designing and developing Microservices architecture
- Solid working knowledge of AWS services
- Familiarity with RESTful APIs, version control (Git), and CI/CD
- Strong problem-solving and debugging skills
- Ability to work independently and in a collaborative team environment
- Immediate joiners are highly preferred
Job Description:
Engage in code design, testing, integration, deployment, and enhancements
Write high-quality code and take responsibility for tasks
Solve performance bottlenecks
Communicate and collaborate with product manager, QA, and UI/UX teams
Deliver with quality, on-time in a fast-paced start-up environment
Have a strong sense of code quality
Candidate Profile:
Bachelor’s/Master’s degree in Engineering, Computer Science (or equivalent experience)
At least 5+ years of relevant experience as a back-end engineer
Excellent Java and object-oriented development skills
Experience in building and scaling microservices
Strong problem-solving skills, technical troubleshooting, and diagnosing
Solid knowledge of RDBMS and NoSQL technologies
Experience in developing back-ends for enterprise systems
Knowledge of debugging performance and optimization techniques
Experience in Java, Mongo, MySQL, AWS technologies, ELK stack, Spring boot, Kafka
Good knowledge of cloud technologies eg. AWS
Demonstrated ability to deliver in a fast-paced environment
- Skilled in Java / J2EE including frameworks like Microservices, Spring boot, hibernate etc
- Experience with microservices-based architecture including building
- Good knowledge of SQL (MySQL / Oracle / SQL Server / Postgres), NoSQL (MongoDB / Cassandra), App server Knowledge (Tomcat/JBoss etc.), OSGi, REST Web Services
- Working / Usage experience of Docker, Microservices, Jenkins, Multithreading, Design patterns, Java 1.8 and Container
- Experience with Cloud computing in added advantage (AWS / Azure)
- Strong Debugging and Troubleshooting Expertise.
- Strong communication skills (oral and written)
WHAT YOU WILL DO:
- Execute a full software development lifecycle (SDLC)
- Develop flowcharts, layouts, and documentation to identify requirements and solutions
- Write well-designed, testable, reusable code and libraries for future use
- Optimize the application for maximum speed and scalability
- Implement security and data protection
- Produce specifications and determine operational feasibility
- Integrate software components into a fully functional software system
- Develop software verification plans and quality assurance procedures
- Document and maintain software functionality
- Troubleshoot, debug and upgrade existing systems
- Deploy programs and evaluate user feedback
- Comply with project plans and industry standards
- Ensure software is updated with latest features
REQUIRED SKILLS & QUALIFICATIONS:
- Good knowledge of Core Java (Minimum Version 8)
- J2EE with a good understanding of Servlets and JSP
- Experience in Spring Modules – Spring IOC and AOP, Spring Boot (version 2 plus), JDBC
- Expertise in design and development of various web and enterprise – level applications using Java/J2EE technologies such as Spring, Hibernate, Rest services.
- Web Services (including SOAP, XML, XML Schema, JSON, and REST)
- Tools required: Maven,Eclipse, Github, and Swagger
- Good knowledge of SQL and Redis (NOSql)
- Ability to document requirements and specifications
- Proven work experience as a Software Engineer or Software Developer
- Ability to develop software in Java or any other OOPS languages
- Excellent knowledge of relational databases, SQL and ORM technologies (JPA2, Hibernate)
- Experience in developing Web Applications using at least one popular Web Framework (Spring)
- Experience with test-driven development
- Proficiency in software engineering tools
PREFERRED SKILLS & QUALIFICATIONS:
- A Bachelor’s Degree in Computer Science, Software Engineering, or other related fields.
- Eight to Ten years of Software Engineering or Software Development experience, preferably in a related field.
REPORTING: This position will report to HOD
EMPLOYMENT TYPE: Full-Time
LOCATION: Remote (Pan India) & In-Office – Jaipur, India
SHIFT TIMINGS:
Summer - 1:30pm-10:30pm IST
Winter - 2:30pm-11:30pm IST
• Experience in the financial domain preferred.
• Hands-on developer in Core Java with an excellent understanding of computer science fundamentals, data structures, algorithms and design patterns.
• Experience with frameworks like Spring, Restful Webservices, Queuing systems, Angular, and Python is highly desired.
• Deep understanding of several cloud providers such as AWS, Azure, Google etc.
• Hands-on experience developing CI/CD pipelines for continuous development and integration.
• Deep knowledge and experience of Java/J2EE and servers like Tomcat.
(Spring/Hibernate)
Development across multiple browsers/platforms on Website
Good Understanding of SQL/NoSQL data stores
Fair Understanding of Responsive High Level Designs
Work experience in product/start-up company is a plus
Familiarity to MVC, SOA, RESTFull web services
Work with other teams and manage time across multiple projects and tasks in a deadline driven, team
environment
Good to have knowledge of Javascript (AngularJS/ReactJS)/HTML/CSS/JQuery front-end code across a
broad array of Interactive web
Understand agile methodology and instill best practices into the process.
* You are a Coder, a Doer. YOU BELIEVE in actions ( *In short - You are less about Gyan and more about Samadhan* )
* YOU BELIEVE in software delivery with quality
* If you are passionate about technology, engineering best practices and using them to solve real and complex business problems.
* Badly written code or bad architecture irritates you the most.
* YOU BELIEVE in "Proof of the pudding is in the eating" so you are always tinkering and exploring new technologies
* YOU BELIEVE in building things the right way, invest in developer productivity and follow proven engineering practices to ensure that you spend the maximum amount of time working on problems that matter.
* Since work is a big part of your life, YOU BELIEVE in sharing knowledge and of course have fun in the process (company outings, team sports, lunches, etc)
You'll be expected to
1. Design highly scalable, testable code and follow Test Driven Development methodology - Able to write well organised, modularised code with test cases.
* Apart from writing code *
1. Take ownership of new products/features.
2. Contribute to the design and architecture of our backend APIs and deployment of microservices
3. Ensure adherence to engineering best practices and maintain the overall quality of our codebase.
4. Mentor and assist younger members of the team and perform code reviews.
5. Work with the product team to translate powerful ideas into everyday business value.
Qualifications
* Will prefer a Bachelor's degree or equivalent experience in Computer Science or related field
* Development experience with Java is a must; If you know Python and Go Programming Language that's great
* Experience in SQL and NoSQL databases with an insight into various data modelling use cases
* Sound with data structures and algorithms and have a good understanding of design patterns, software architectures
* Unquenching thirst to learn new technologies.
* Experience with CI/CD is a plus
What FreightFox gives you
- A high energy environment where you’ll be working alongside people who want to bring innovative tech solutions in the Indian landscape. Make in India for India.
- A chance to become a part of the early team of a budding start-up and help shape its growth path.
- Competitive Package
- Stocks - Be part of the early-stage startup and they benefit financially from the company’s growth
About FreightFox
We are a young and ambitious technology start-up in the Indian B2B Logistics space. Our aim is to change the future of freight in India by leveraging tech and data to deliver new and exciting possibilities in this space.
We’ve cautiously cultivated an environment where customers come first, where we validate our hypothesis first before writing even a single line of code, where our customers and prospects are our best advisors and where we truly believe that insights from data are critical to steering a business in the right direction.
We have raised $300K seed fund from Angel Investors in Dec 2020

Writing reusable, testable, and efficient code Design and implementation of low-latency, high-availability, and performant applications Integration of user-facing elements developed by front-end developers with server side logic Implementation of security and data protection
Skills and Qualifications :-
• Good Understanding of Java/J2EE programming language, Spring REST, Spring Boot, Spring Cloud , Microservices , NoSQL, Cassandra, couchbase, postgreSQL, Redis or any distributed cache stores, Kafka/spark
• Comfortable producing and refactoring code without assistance
• Hands on experience with dockers
• Hands on experience with cloud environments either AWS or Azure
• Able to do BDD or test driven development
• Hands on knowledge with test frameworks for automation
• Understands different major language paradigms (OOP/Functional)
• Knowledge of design patterns for REST application
• Can implement design patterns with guidance
• Understands CI and continuous delivery.
• Understands BDD/TDD/Performance/Security/Smoke testing
• Working knowledge of CI tooling
• Understands version control & branching strategies
• Comfortable translating small behaviour requirements into tasks & code








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